They can be smoked.
There's just not much point to it.

<1% resin in most males.

Still, a kilo of male plant from a potent strain could yield over a quarter ounce of bubble hash.
That, and I'm doing a solvent extraction on male cannabis to see if it will make a working topical for melanoma.

Nothing is completely worthless, yah?

Aloha,
Weezard